win32: move away from com for drag and drop to avoid conflicts (and because com sucks)
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c404e9e14b
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2 changed files with 53 additions and 149 deletions
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@ -29,12 +29,6 @@ struct _MwLLGDI {
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int force_render;
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int get_clipboard;
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int get_darktheme;
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/* drag and drop */
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struct _MwLLGDIDropTarget* dropTarget;
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struct _MwLLGDIDropSource* dropSource;
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MwBool drag_update;
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MwBool finishing_drag;
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};
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struct _MwLLGDIColor {
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@ -53,14 +47,6 @@ struct _MwLLGDIPixmap {
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HBITMAP hMask2;
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};
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struct _MwLLGDIDropTarget{
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struct IDropTargetVtbl *lpVtbl;
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LONG refCount;
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HWND hwnd;
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MwLL handle;
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};
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typedef struct _MwLLGDIDropTarget MwLLGDIDropTarget;
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MWDECL int MwLLGDICallInit(void);
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MWDECL HCURSOR MwLLGDICreateCursor(MwCursor* image, MwCursor* mask);
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@ -91,6 +91,8 @@ static LRESULT CALLBACK wndproc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp) {
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if(u == NULL) return DefWindowProc(hWnd, msg, wp, lp);
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switch(msg) {
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case WM_INITDIALOG:
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return TRUE;
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case WM_PAINT:
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{
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PAINTSTRUCT ps;
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@ -181,6 +183,49 @@ static LRESULT CALLBACK wndproc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp) {
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MwLLDispatch(u->ll, up, &p);
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break;
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}
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case WM_DROPFILES: {
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HDROP hDrop = (HDROP)wp;
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UINT count;
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UINT i, n;
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HRESULT hr;
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count = wsymtbl.DragQueryFileW(hDrop, 0xFFFFFFFF, NULL, 0);
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for(i = 0; i < count; i++) {
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wchar_t path[MAX_PATH];
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char path_normal[MAX_PATH];
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char* mime_type_normal;
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wchar_t* mime_type = NULL;
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int mime_type_size;
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HRESULT hr;
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int i;
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wsymtbl.DragQueryFileW(hDrop, i, path, MAX_PATH);
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wsymtbl.DragQueryFileA(hDrop, i, path_normal, MAX_PATH);
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hr = wsymtbl.FindMimeFromData(NULL, path, NULL, 0,
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NULL, 0, &mime_type, 0x0);
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mime_type_size = WideCharToMultiByte(CP_ACP, 0, mime_type, -1, NULL, 0, NULL, FALSE);
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mime_type_normal = malloc(sizeof(mime_type_size));
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WideCharToMultiByte(CP_ACP, 0, mime_type, -1, mime_type_normal, mime_type_size, NULL, FALSE);
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if(mime_type_size == 0) {
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printf("Error converting mime type to multi-byte: %ld\n", GetLastError());
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} else {
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if(u->ll->common.known_mime_types) {
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for(n = 0; n < arrlen(u->ll->common.known_mime_types); n++) {
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if(strcmp(mime_type_normal, u->ll->common.known_mime_types[n]) == 0) {
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MwDispatchUserHandler(u->ll->common.user, MwNdragAndDropHandler, path_normal);
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}
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}
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} else {
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MwDispatchUserHandler(u->ll->common.user, MwNdragAndDropHandler, path_normal);
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}
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}
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}
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DragFinish(hDrop);
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break;
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}
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case WM_MOUSEMOVE:
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{
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MwPoint p;
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@ -210,6 +255,7 @@ static LRESULT CALLBACK wndproc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp) {
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SetCursorPos(p.x, p.y);
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}
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break;
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}
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case WM_SIZE:
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@ -443,9 +489,6 @@ static MwLL MwLLCreateImpl(MwLL parent, int x, int y, int width, int height) {
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SetWindowPos(r->gdi.hWnd, NULL, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
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r->gdi.dropTarget = NULL;
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r->gdi.drag_update = MwFALSE;
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return r;
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}
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@ -460,8 +503,6 @@ static void MwLLDestroyImpl(MwLL handle) {
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if(handle->gdi.cursor != NULL) DestroyCursor(handle->gdi.cursor);
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if(handle->gdi.dropTarget) free(handle->gdi.dropTarget);
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free(handle);
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}
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@ -575,7 +616,7 @@ static int MwLLPendingImpl(MwLL handle) {
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(void)handle;
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if(handle->gdi.get_clipboard || handle->gdi.get_darktheme || handle->gdi.drag_update) return 1;
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if(handle->gdi.get_clipboard || handle->gdi.get_darktheme) return 1;
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return PeekMessage(&msg, handle->gdi.hWnd, 0, 0, PM_NOREMOVE) ? 1 : 0;
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}
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@ -607,13 +648,11 @@ static void MwLLNextEventImpl(MwLL handle) {
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handle->gdi.get_darktheme = 0;
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}
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if(handle->gdi.finishing_drag) {
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handle->gdi.drag_update = 0;
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handle->gdi.finishing_drag = 0;
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}
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while(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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while(PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)) {
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if(GetMessage(&msg, NULL, 0, 0)) {
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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}
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}
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@ -1025,129 +1064,8 @@ static void MwLLClipImpl(MwLL handle, MwRect* rect) {
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}
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}
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static HRESULT STDMETHODCALLTYPE GDIDT_QueryInterface(IDropTarget* this_, REFIID riid, void** ppv) {
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if(IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IDropTarget)) {
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*ppv = this_;
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this_->lpVtbl->AddRef(this_);
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return S_OK;
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}
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*ppv = NULL;
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return E_NOINTERFACE;
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}
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static ULONG STDMETHODCALLTYPE GDIDT_AddRef(IDropTarget* this_) {
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MwLLGDIDropTarget* self = (MwLLGDIDropTarget*)this_;
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return InterlockedIncrement(&self->refCount);
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}
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static ULONG STDMETHODCALLTYPE GDIDT_Release(IDropTarget* this_) {
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MwLLGDIDropTarget* self = (MwLLGDIDropTarget*)this_;
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LONG c = InterlockedDecrement(&self->refCount);
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if(c == 0) free(self);
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return c;
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}
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static HRESULT STDMETHODCALLTYPE GDIDT_DragEnter(IDropTarget* this_, IDataObject* pDataObj,
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DWORD grfKeyState, POINTL pt, DWORD* pdwEffect) {
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*pdwEffect = DROPEFFECT_COPY;
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return S_OK;
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}
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static HRESULT STDMETHODCALLTYPE GDIDT_DragOver(IDropTarget* this_, DWORD grfKeyState,
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POINTL pt, DWORD* pdwEffect) {
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MwLLGDIDropTarget* self = (MwLLGDIDropTarget*)this_;
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self->handle->gdi.drag_update = MwTRUE;
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return S_OK;
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}
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static HRESULT STDMETHODCALLTYPE GDIDT_DragLeave(IDropTarget* this_) {
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MwLLGDIDropTarget* self = (MwLLGDIDropTarget*)this_;
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self->handle->gdi.drag_update = MwFALSE;
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return S_OK;
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}
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static HRESULT STDMETHODCALLTYPE GDIDT_Drop(IDropTarget* this_, IDataObject* pDataObj,
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DWORD grfKeyState, POINTL pt, DWORD* pdwEffect) {
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FORMATETC fmt = {CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
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STGMEDIUM stg;
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MwLLGDIDropTarget* self = (MwLLGDIDropTarget*)this_;
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self->handle->gdi.drag_update = MwTRUE;
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if(pDataObj->lpVtbl->GetData(pDataObj, &fmt, &stg) == S_OK) {
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HDROP hDrop = (HDROP)stg.hGlobal;
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UINT count = wsymtbl.DragQueryFileW(hDrop, 0xFFFFFFFF, NULL, 0);
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UINT i, n;
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HRESULT hr;
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for(i = 0; i < count; i++) {
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wchar_t path[MAX_PATH];
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char path_normal[MAX_PATH];
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char* mime_type_normal;
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wchar_t* mime_type = NULL;
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int mime_type_size;
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HRESULT hr;
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int i;
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wsymtbl.DragQueryFileW(hDrop, i, path, MAX_PATH);
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wsymtbl.DragQueryFileA(hDrop, i, path_normal, MAX_PATH);
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hr = wsymtbl.FindMimeFromData(NULL, path, NULL, 0,
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NULL, 0, &mime_type, 0x0);
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mime_type_size = WideCharToMultiByte(CP_ACP, 0, mime_type, -1, NULL, 0, NULL, FALSE);
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mime_type_normal = malloc(sizeof(mime_type_size));
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WideCharToMultiByte(CP_ACP, 0, mime_type, -1, mime_type_normal, mime_type_size, NULL, FALSE);
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if(mime_type_size == 0) {
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printf("Error converting mime type to multi-byte: %ld\n", GetLastError());
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} else {
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if(self->handle->common.known_mime_types) {
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for(n = 0; n < arrlen(self->handle->common.known_mime_types); n++) {
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if(strcmp(mime_type_normal, self->handle->common.known_mime_types[n]) == 0) {
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MwDispatchUserHandler(self->handle->common.user, MwNdragAndDropHandler, path_normal);
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self->handle->gdi.finishing_drag = 1;
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}
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}
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} else {
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MwDispatchUserHandler(self->handle->common.user, MwNdragAndDropHandler, path_normal);
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self->handle->gdi.finishing_drag = 1;
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}
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}
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free(mime_type);
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}
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wsymtbl.ReleaseStgMedium(&stg);
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*pdwEffect = DROPEFFECT_COPY;
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} else {
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*pdwEffect = DROPEFFECT_NONE;
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}
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return S_OK;
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}
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static IDropTargetVtbl DropTarget_Vtbl = {
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GDIDT_QueryInterface,
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GDIDT_AddRef,
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GDIDT_Release,
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GDIDT_DragEnter,
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GDIDT_DragOver,
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GDIDT_DragLeave,
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GDIDT_Drop};
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static void MwLLSetupDragAndDropImpl(MwLL handle) {
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HRESULT hr = 0;
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handle->gdi.dropTarget = (MwLLGDIDropTarget*)malloc(sizeof(MwLLGDIDropTarget));
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handle->gdi.dropTarget->lpVtbl = &DropTarget_Vtbl;
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handle->gdi.dropTarget->refCount = 1;
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handle->gdi.dropTarget->hwnd = handle->gdi.hWnd;
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handle->gdi.dropTarget->handle = handle;
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hr = wsymtbl.RegisterDragDrop(handle->gdi.hWnd, (IDropTarget*)handle->gdi.dropTarget);
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if(!SUCCEEDED(hr)) {
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printf("RegisterDragDrop failed; %08lx\n", hr);
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return;
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}
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DragAcceptFiles(handle->gdi.hWnd, TRUE);
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}
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static int MwLLGDICallInitImpl(void) {
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