I believe that you’re missing a correct WPARAM
for the WM_LBUTTONDOWN
message, which for the left-button is MK_LBUTTON
#define MK_LBUTTON 0x0001
I believe that you’re missing a correct WPARAM
for the WM_LBUTTONDOWN
message, which for the left-button is MK_LBUTTON
#define MK_LBUTTON 0x0001