Wegen dem "Durchklicken"...
hab das in
PSDK gefunden, vielleicht hilft das ja och noch etwas mit?
Delphi-Quellcode:
WS_EX_TRANSPARENT
Hit testing of a layered window is based on the shape and transparency of the window. This means that the areas of the window that are color-keyed or whose alpha value is zero will let the mouse messages through. However, if the layered window has the WS_EX_TRANSPARENT extended window style, the shape of the layered window will be ignored and the mouse events will be passed to other windows underneath the layered window.