[win32] Reduce calls to Image#win32_getHandle(int) #2120
Merged
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This PR reduces the calls to Image#win32_getHandle(int) in GC. When drawing an image with a GC multiple draw... methods are calling each other for that operation. All those methods are refetching the handle via Image#win32_getHandle(int) with getZoom(). To support use cases where a method uses a different zoom to get a handle to draw the handle is now fetched in the top most methods and are passed to the other methods directly.
This PR does not change any behavior of the drawing of images.