MouseXPos (Function)

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MouseXPos (Function)

In french: SourisPosX

Returns the horizontal position (X) of the mouse cursor relative to the specified window or control. Used in a mouse or stylus process (click, hover, left or right button down, etc.).

You can get:

the position of the mouse (or stylus) when an Image control is clicked (function used in the "Click" event of the Image control).
the position of the mouse (or stylus) when hovering over a window (function used in the optional "Mouse hover" event of a window).

Returns the horizontal position (X) of the mouse cursor according to the specified marker. Used in a browser event of a control or page.

Remarks:

The mouse position can also be obtained with CursorPos. CursorPos should only be used to modify the mouse position.
This function should only be used in the events of controls hovered with the mouse.
MouseXPos returns the last known position of the finger on the screen.

Example

// "WIN_Drawing" window hovered by the mouse
// Optional code of the window
Message("Position of the mouse: X: " + MouseXPos() + "Y: " + MouseYPos())

// Displays a different message according to the location clicked
IF MouseXPos() > 25 THEN
Info("To the right")
ELSE
Info("To the left")
END

// "Drawing" page hovered by the mouse
// Optional code of the page
// Mouse moved (onmousemove)
Message("Position of the mouse: X: " + MouseXPos(mpPage) + "Y: " + MouseYPos(mpPage))

Syntax

Retrieving the mouse position in a window Hide the details

<Result> = MouseXPos([<Marker>])

<Result>: Integer

Horizontal position (X-coordinate) of the mouse or stylus, in pixels. By default, this position is relative to the upper-left corner of the control on which the left mouse button was pressed.
-1 if an error occurred.

<Marker>: Optional Integer constant

Marker used to calculate the position:
mpControl
(Default value) Mouse position relative to the upper-left corner of the hovered control or window, depending on where the event occurs.
mpImage Mouse position in the Image control (relative to the upper-left corner).

This constant should only be used when MouseXPos is called in an event associated with an Image control. Otherwise, MouseXPos will return -1.
mpScreen Mouse position in the screen (relative to the upper-left corner).
mpWindow Mouse position relative to the upper-left corner of the window.

This parameter is not available.

Retrieving the mouse position in a page Hide the details

<Result> = MouseXPos([<Marker>])

<Result>: Integer or real

Horizontal position (X-coordinate) of the mouse cursor relative to the specified marker (in pixels)
0 if the information is not available (depending on the browser used and on the control).

<Marker>: Optional integer constant

Marker used to calculate the position:
mpControl
(Default value) Mouse position relative to the upper-left corner of the hovered control or page, depending on where the event occurs.
If this constant is selected, MouseXPos must be used in the "OnClick" code of the control.
mpPage Mouse position relative to the upper-left corner of the page (taking into account the position of the page if it has been scrolled).
mpScreen Mouse position in the screen (relative to the upper-left corner).

Remarks

Error

The main error codes are as follows:

No window is opened.
No mouse click is performed.
MouseXPos is not called in a mouse event.
The click code is executed by Execute or ExecuteProcess.

Miscellaneous

You can get the vertical position of the mouse or stylus with MouseYPos.
MouseXPos used in the selection code of row or table always returns 0.
This function should only be used in WLanguage events of controls hovered with the mouse.

Limits in browser code

MouseXPos is not available:

in browser procedures.
in the events directly or indirectly called from a browser procedure (via ExecuteProcess for example).
in the browser code of a Button or Link control..

Related Examples:

Unit examples (WINDEV): The drawing functions

[ + ] Using the main drawing functions of WINDEV to:
- Initialize an Image control for drawing
- Draw simple shapes
- Write a text into a drawing
- Change the color in a drawing

Component: wd270obj.dll