WM_LBUTTONDBLCLK
This message is posted when the user double-taps the touch-screen while the stylus is pressed to the touch screen in the client area of a window. If the stylus is not captured, the message is posted to the window beneath the stylus position. Otherwise, the message is posted to the window that has captured the mouse.
WM_LBUTTONDBLCLK fwKeys = wParam;
xPos = LOWORD(lParam);
yPos = HIWORD(lParam);
Parameters
fwKeys
Indicates whether various virtual keys are down. It is any combination of the following values:Value Description MK_CONTROL Set if the CTRL key is down. MK_LBUTTON Set if the left mouse button is down. MK_MBUTTON Set if the middle mouse button is down. MK_RBUTTON Set if the right mouse button is down. MK_SHIFT Set if the SHIFT key is down. xPos
Value of the low-order word of lParam. Specifies the x-coordinate of the cursor. The coordinate is relative to the upper-left corner of the client area.yPos
Value of the high-order word of lParam. Specifies the y-coordinate of the cursor. The coordinate is relative to the upper-left corner of the client area.
Return Values
An application should return zero if it processes this message.
Remarks
Only windows that have the CS_DBLCLKS style can receive WM_LBUTTONDBLCLK messages, which the system generates when the user presses, releases, and again presses the left mouse button within the system's double-click time limit. Double-clicking the left mouse button actually generates four messages: WM_LBUTTONDOWN, WM_LBUTTONUP, WM_LBUTTONDBLCLK, and WM_LBUTTONUP again.
An application can use the MAKEPOINTS macro to convert the lParam parameter to a POINTS structure.
Requirements
| Runs on | Versions | Defined in | Include | Link to |
|---|---|---|---|---|
| Windows CE OS | 1.0 and later | Winuser.h |
Note This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.
See Also
GetCapture, SetCapture, WM_LBUTTONDOWN, WM_LBUTTONUP, POINTS
Last updated on Tuesday, July 13, 2004
© 1992-2000 Microsoft Corporation. All rights reserved.