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; * src/w32image.c (w32_gdip_export_frame): Add error checking.

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This commit is contained in:
Eli Zaretskii 2026-03-02 17:03:17 +02:00
parent b3c0aee42b
commit f46eaf609e
1 changed files with 5 additions and 1 deletions
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6
src/w32image.c
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@ -580,9 +580,13 @@ w32_gdip_export_frame (HWND hwnd, Lisp_Object file, CLSID *clsid)
made visible, in which case users might want them in the image.
The downside is that the image has some of the desktop around the
frame included in it. So what? */
GetWindowRect (hwnd, &frame_rect);
if (!GetWindowRect (hwnd, &frame_rect))
return -1;
frame_width = frame_rect.right - frame_rect.left;
frame_height = frame_rect.bottom - frame_rect.top;
if (!(frame_width > 0 && frame_height > 0))
return -1;
hdc = GetWindowDC (hwnd);
bits_per_pixel = GetDeviceCaps (hdc, BITSPIXEL);
capture_hdc = CreateCompatibleDC (hdc);