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_WTopP( ) API Library Routine

  • Article

Returns the position on the screen in pixels where the top of the window is located.

unsigned int _WTopP(WHANDLE wh)
WHANDLE wh;            /* Window handle. */

Remarks

For more information on how to create an API library and integrate it with Visual FoxPro, see Accessing the Visual FoxPro API.

Example

The following example displays the position of the active window in pixels.

Visual FoxPro Code

SET LIBRARY TO WTOPP 
=WPOSITION()

C Code

#include <pro_ext.h>

void putLong(long n, int width)
{
   Value val;

   val.ev_type = 'I';
   val.ev_long = n;
   val.ev_width = width;

   _PutValue(&val);
}

void FAR Example(ParamBlk FAR *parm)
{
   WHANDLE wh = _WOnTop();

   _PutStr("\ntop   ="); putLong(_WTopP(wh), 5);
   _PutStr("\nleft ="); putLong(_WLeftP(wh), 5);
   _PutStr("\nbottom ="); putLong(_WBottomP(wh), 5);
   _PutStr("\nright  ="); putLong(_WRightP(wh), 5);
}

FoxInfo myFoxInfo[] = {
   {"WPOSITION", Example, 0, ""},
};
FoxTable _FoxTable = {
   (FoxTable FAR *) 0, sizeof(myFoxInfo)/sizeof(FoxInfo), myFoxInfo
};

See Also

_WBottomP( ) API Library Routine | _WHeightP( ) API Library Routine | _WLeftP( ) API Library Routine | _WRightP( ) API Library Routine | _WWidthP( ) API Library Routine | _WTop( ) API Library Routine