SetclassLong

zlf312512

void CStyleView :: OnLButtonDown (UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and / or call default
Ranch
SetClassLong (m_hWnd, GCL_HCURSOR, (LONG) LoadCursor (:: AfxGetInstanceHandle (), MAKEINTRESOURCE (IDC_CURSOR1)));
CView :: OnLButtonDown (nFlags, point);
}

void CStyleView :: OnLButtonUp (UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and / or call default
SetClassLong (m_hWnd, GCL_HCURSOR, (LONG) LoadCursor (:: AfxGetInstanceHandle (), MAKEINTRESOURCE (IDC_CURSOR2)));

CView :: OnLButtonUp (nFlags, point);
}
Why do I press the mouse button and release the left mouse button, the mouse graphics do not change immediately, but I must move it to change the mouse graphics.

renrugang

This may need to be redrawn. You can try it by adding an Invalidate ()

zlf312512

TO:renrugang
I tried it, no.

lcdxhj

Try to send a WM_SETCURSOR manually after SetClassLong