VG3_mouse_ispressed()Returns pressed mouse-keys.
int VG3_mouse_ispressed(void *wstruct, int *left, int *middle, int *right, int flag)
|left||If not NULL, it returns whether the left mouse-key is pressed|
|middle||If not NULL, it returns whether the middle mouse-key is pressed|
|right||If not NULL, it returns whether the right mouse-key is pressed|
|flag||Kind of mouse-key-pressing: one of the values of VGAG3_PRESSED|
Returns whether any mouse-key is (new) pressed.
Return whether and which keys of the mouse are pressed. If flag is VGAG3_IS_PRESSED, the return value will be 1, if the/any mouse-key is being pressed. If flag is VGAG3_IS_NEW_PRESSED, the return value will be 1, if the/any mouse-key is new pressed and has not been asked before with this function.