diff options
| author | George Hazan <george.hazan@gmail.com> | 2013-08-24 08:55:18 +0000 |
|---|---|---|
| committer | George Hazan <george.hazan@gmail.com> | 2013-08-24 08:55:18 +0000 |
| commit | 278212c375c66cb5d4c95082f86b9014137dca19 (patch) | |
| tree | 102b1eb9a03b5af3b8af06db1e7cbdda4bc59ba3 /plugins/ShellExt/src/shlicons.cpp | |
| parent | 32da22a8ff4715a123f9a263aebcd0d5ba9ae7c1 (diff) | |
first version that works
git-svn-id: http://svn.miranda-ng.org/main/trunk@5806 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'plugins/ShellExt/src/shlicons.cpp')
| -rw-r--r-- | plugins/ShellExt/src/shlicons.cpp | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/plugins/ShellExt/src/shlicons.cpp b/plugins/ShellExt/src/shlicons.cpp new file mode 100644 index 0000000000..20f941a03e --- /dev/null +++ b/plugins/ShellExt/src/shlicons.cpp @@ -0,0 +1,71 @@ +#include "stdafx.h"
+#include "shlicons.h"
+
+#pragma comment(lib, "windowscodecs.lib")
+/*
+The following implementation has been ported from:
+
+http://web.archive.org/web/20080121112802/http://shellrevealed.com/blogs/shellblog/archive/2007/02/06/Vista-Style-Menus_2C00_-Part-1-_2D00_-Adding-icons-to-standard-menus.aspx
+
+It uses WIC (Windows Imaging Codec) to convert the given Icon into a bitmap in ARGB format, this is required
+by Windows for use as an icon (but in bitmap format), so that Windows draws everything (including theme)
+so we don't have to.
+
+Why didn't they just do this themselves? ...
+*/
+
+/*
+ The object returned from this function has to be released using the QI COM interface, don't forget.
+ Note this function won't work on anything where WIC isn't installed (XP can have it installed, but not by default)
+ anything less won't work.
+*/
+
+IWICImagingFactory* ARGB_GetWorker()
+{
+ IWICImagingFactory *res = NULL;
+ CoCreateInstance(CLSID_WICImagingFactory, NULL, CLSCTX_INPROC_SERVER, IID_IWICImagingFactory, (void**)&res);
+ return res;
+}
+
+HBITMAP ARGB_BitmapFromIcon(IWICImagingFactory *Factory, HDC hDC, HICON hIcon)
+{
+ HBITMAP hBmp = NULL;
+
+ // This code gives an icon to WIC and gets a bitmap object in return, it then creates a DIB section
+ // which is 32bits and the same H*W as the icon. It then asks the bitmap object to copy itself into the DIB }
+
+ BITMAPINFO bmi = { 0 };
+ bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+ bmi.bmiHeader.biPlanes = 1;
+ bmi.bmiHeader.biCompression = BI_RGB;
+ bmi.bmiHeader.biBitCount = 32;
+
+ IWICBitmap *bitmap = NULL;
+ HRESULT hr = Factory->CreateBitmapFromHICON(hIcon, &bitmap);
+ if (hr == S_OK) {
+ int cx, cy;
+ hr = bitmap->GetSize((PUINT)&cx, (PUINT)&cy);
+ if (hr == S_OK) {
+ bmi.bmiHeader.biWidth = cx;
+ bmi.bmiHeader.biHeight = -cy;
+
+ void *pbBuffer;
+ hBmp = CreateDIBSection(hDC, &bmi, DIB_RGB_COLORS, &pbBuffer, 0, 0);
+ if (hBmp != 0) {
+ UINT cbStride = cx * sizeof(DWORD); // ARGB = DWORD
+ UINT cbBuffer = cy * cbStride;
+ // note: the pbBuffer memory is owned by the DIB and will be freed when the bitmap is released
+ hr = bitmap->CopyPixels(NULL, cbStride, cbBuffer, (PBYTE)pbBuffer);
+ if (hr != S_OK) {
+ // the copy failed, delete the DIB
+ DeleteObject(hBmp);
+ hBmp = NULL;
+ }
+ }
+ }
+ // release the bitmap object now
+ bitmap->Release();
+ }
+
+ return hBmp;
+}
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