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WM_SETCURSOR messages are not dispatched to a window that has mouse capture - if the cursor should be set to indicate the drag via SetCursor when the drag operation begins - if the cursor needs to change to provide feedback to the user, it should be set in response to WM_MOUSEMOVE. Mouse capture interrupts the normal flow of mouse processing. As you have explicitly lost capture, you don't need to call ReleaseCapture(). It probably makes no sense to continue your drag operation, so it should be aborted. The capture has been cleared, or some other window has obtained it. Abort the drag operation and call ReleaseCapture(). The window manager sends this message when it detects a change that requires that an application cancel any modal state it has entered. ![]() If required, abort the drag operation and call ReleaseCapture(). #Website pictures mouse coordinates internetisbeautiful windowsIf the mouse up finishes the drag (see the below Remarks for more information on why a mouse up might not finish a drag operation) ReleaseCapture() must be called to allow other windows access to mouse messages.Ī drag operation can usually be aborted by pressing ESC. Note that various drag enabled controls detect when a drag begins and send their parent a message such as LVN_BEGINDRAG. Once the beginning of a drag operation is confirmed, call SetCapture(). If the user is clicking on something draggable, use the DragDetect() API to detect if a drag operation is beginning. To implement a drag operation in your application, you would implement the following message handlers: WM_LBUTTONDOWN WM_RBUTTONDOWNĪ drag operation generally starts when the user clicks on something, and begins to move the mouse. Implementing a Drag operation using SetCapture
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