--- trunk/reactos/lib/user32/windows/class.c 2005-10-24 21:57:32 UTC (rev 18763)
+++ trunk/reactos/lib/user32/windows/class.c 2005-10-24 22:02:39 UTC (rev 18764)
@@ -401,6 +401,170 @@
}
/*
+ * Create a small icon based on a standard icon
+ */
+static HICON
+CreateSmallIcon(HICON StdIcon)
+{
+ HICON SmallIcon = NULL;
+ ICONINFO StdInfo;
+ int SmallIconWidth;
+ int SmallIconHeight;
+ BITMAP StdBitmapInfo;
+ HDC hInfoDc = NULL;
+ HDC hSourceDc = NULL;
+ HDC hDestDc = NULL;
+ ICONINFO SmallInfo;
+ HBITMAP OldSourceBitmap = NULL;
+ HBITMAP OldDestBitmap = NULL;
+
+ SmallInfo.hbmColor = NULL;
+ SmallInfo.hbmMask = NULL;
+
+ /* We need something to work with... */
+ if (NULL == StdIcon)
+ {
+ goto cleanup;
+ }
+
+ SmallIconWidth = GetSystemMetrics(SM_CXSMICON);
+ SmallIconHeight = GetSystemMetrics(SM_CYSMICON);
+ if (! GetIconInfo(StdIcon, &StdInfo))
+ {
+ DPRINT1("Failed to get icon info for icon 0x%x\n", StdIcon);
+ goto cleanup;
+ }
+ if (! GetObjectW(StdInfo.hbmMask, sizeof(BITMAP), &StdBitmapInfo))
+ {
+ DPRINT1("Failed to get bitmap info for icon 0x%x bitmap 0x%x\n",
+ StdIcon, StdInfo.hbmColor);
+ goto cleanup;
+ }
+ if (StdBitmapInfo.bmWidth == SmallIconWidth &&
+ StdBitmapInfo.bmHeight == SmallIconHeight)
+ {
+ /* Icon already has the correct dimensions */
+ return StdIcon;
+ }
+
+ /* Get a handle to a info DC and handles to DCs which can be used to
+ select a bitmap into. This is done to avoid triggering a switch to
+ graphics mode (if we're currently in text/blue screen mode) */
+ hInfoDc = CreateICW(NULL, NULL, NULL, NULL);
+ if (NULL == hInfoDc)
+ {
+ DPRINT1("Failed to create info DC\n");
+ goto cleanup;
+ }
+ hSourceDc = CreateCompatibleDC(NULL);
+ if (NULL == hSourceDc)
+ {
+ DPRINT1("Failed to create source DC\n");
+ goto cleanup;
+ }
+ hDestDc = CreateCompatibleDC(NULL);
+ if (NULL == hDestDc)
+ {
+ DPRINT1("Failed to create dest DC\n");
+ goto cleanup;
+ }
+
+ OldSourceBitmap = SelectObject(hSourceDc, StdInfo.hbmColor);
+ if (NULL == OldSourceBitmap)
+ {
+ DPRINT1("Failed to select source color bitmap\n");
+ goto cleanup;
+ }
+ SmallInfo.hbmColor = CreateCompatibleBitmap(hInfoDc, SmallIconWidth,
+ SmallIconHeight);
+ if (NULL == SmallInfo.hbmColor)
+ {
+ DPRINT1("Failed to create color bitmap\n");
+ goto cleanup;
+ }
+ OldDestBitmap = SelectObject(hDestDc, SmallInfo.hbmColor);
+ if (NULL == OldDestBitmap)
+ {
+ DPRINT1("Failed to select dest color bitmap\n");
+ goto cleanup;
+ }
+ if (! StretchBlt(hDestDc, 0, 0, SmallIconWidth, SmallIconHeight,
+ hSourceDc, 0, 0, StdBitmapInfo.bmWidth,
+ StdBitmapInfo.bmHeight, SRCCOPY))
+ {
+ DPRINT1("Failed to stretch color bitmap\n");
+ goto cleanup;
+ }
+
+ if (NULL == SelectObject(hSourceDc, StdInfo.hbmMask))
+ {
+ DPRINT1("Failed to select source mask bitmap\n");
+ goto cleanup;
+ }
+ SmallInfo.hbmMask = CreateBitmap(SmallIconWidth, SmallIconHeight, 1, 1,
+ NULL);
+ if (NULL == SmallInfo.hbmMask)
+ {
+ DPRINT1("Failed to create mask bitmap\n");
+ goto cleanup;
+ }
+ if (NULL == SelectObject(hDestDc, SmallInfo.hbmMask))
+ {
+ DPRINT1("Failed to select dest mask bitmap\n");
+ goto cleanup;
+ }
+ if (! StretchBlt(hDestDc, 0, 0, SmallIconWidth, SmallIconHeight,
+ hSourceDc, 0, 0, StdBitmapInfo.bmWidth,
+ StdBitmapInfo.bmHeight, SRCCOPY))
+ {
+ DPRINT1("Failed to stretch mask bitmap\n");
+ goto cleanup;
+ }
+
+ SmallInfo.fIcon = TRUE;
+ SmallInfo.xHotspot = SmallIconWidth / 2;
+ SmallInfo.yHotspot = SmallIconHeight / 2;
+ SmallIcon = CreateIconIndirect(&SmallInfo);
+ if (NULL == SmallIcon)
+ {
+ DPRINT1("Failed to create icon\n");
+ goto cleanup;
+ }
+
+cleanup:
+ if (NULL != SmallInfo.hbmMask)
+ {
+ DeleteObject(SmallInfo.hbmMask);
+ }
+ if (NULL != OldDestBitmap)
+ {
+ SelectObject(hDestDc, OldDestBitmap);
+ }
+ if (NULL != SmallInfo.hbmColor)
+ {
+ DeleteObject(SmallInfo.hbmColor);
+ }
+ if (NULL != hDestDc)
+ {
+ DeleteDC(hDestDc);
+ }
+ if (NULL != OldSourceBitmap)
+ {
+ SelectObject(hSourceDc, OldSourceBitmap);
+ }
+ if (NULL != hSourceDc)
+ {
+ DeleteDC(hSourceDc);
+ }
+ if (NULL != hInfoDc)
+ {
+ DeleteDC(hInfoDc);
+ }
+
+ return SmallIcon;
+}
+
+/*
* @implemented
*/
ATOM STDCALL
@@ -439,6 +603,11 @@
RtlCopyMemory(&WndClass, lpwcx, sizeof(WNDCLASSEXW));
+ if (NULL == WndClass.hIconSm)
+ {
+ WndClass.hIconSm = CreateSmallIcon(WndClass.hIcon);
+ }
+
if (IS_ATOM(lpwcx->lpszMenuName) || lpwcx->lpszMenuName == 0)
{
MenuName.Length =
@@ -514,6 +683,11 @@
RtlCopyMemory(&WndClass, lpwcx, sizeof(WNDCLASSEXW));
+ if (NULL == WndClass.hIconSm)
+ {
+ WndClass.hIconSm = CreateSmallIcon(WndClass.hIcon);
+ }
+
if (IS_ATOM(lpwcx->lpszMenuName))
{
MenuName.Length =