Esme Povirk : gdiplus: Don't call GetDeviceCaps for NULL dc.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: d41a1f0183f5686fa3ed1b42c4de07e393833925
URL:    https://gitlab.winehq.org/wine/wine/-/commit/d41a1f0183f5686fa3ed1b42c4de07e...

Author: Esme Povirk 
Date:   Mon May  6 11:52:56 2024 -0500

gdiplus: Don't call GetDeviceCaps for NULL dc.

---

dlls/gdiplus/graphics.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dlls/gdiplus/graphics.c b/dlls/gdiplus/graphics.c
index 58fa129b504..14e09e7cc47 100644
--- a/dlls/gdiplus/graphics.c
+++ b/dlls/gdiplus/graphics.c
@@ -519,7 +519,8 @@ static GpStatus alpha_blend_hdc_pixels(GpGraphics *graphics, INT dst_x, INT dst_
     if(!hbitmap || !temp_bits)
         goto done;

-    if ((GetDeviceCaps(graphics->hdc, TECHNOLOGY) == DT_RASPRINTER &&
+    if ((graphics->hdc &&
+         GetDeviceCaps(graphics->hdc, TECHNOLOGY) == DT_RASPRINTER &&
          GetDeviceCaps(graphics->hdc, SHADEBLENDCAPS) == SB_NONE) ||
             fmt & PixelFormatPAlpha)
         memcpy(temp_bits, src, src_width * src_height * 4);