VECTORFONTMAPPERCALLBACK Function
#include "lvkrn.h"
L_INT pEXT_CALLBACK YourFunction (pVector, pFont, pUserData)
pVECTORHANDLE pVector; |
/* pointer to a vector handle */ |
LPLOGFONTW pFont; |
/* pointer to LOGFONTW structure */ |
L_VOID * pUserData; |
/* pointer to additional parameters */ |
Processes each new font that is added to the resource list of the vector drawing.
Parameter |
Description |
pVector |
Pointer to the vector handle to which the font is being added. |
pFont |
Pointer to a LOGFONTW structure. The user can modify the contents of this structure to control the attributes of the font before adding/using it in the drawing. |
pUserData |
A void pointer that you can use to access a variable or structure containing data that your callback function needs. This gives you a way to receive data indirectly from the function that uses this callback function. (This is the same pointer that you pass in the pUserData parameter of the calling function.) |
|
Keep in mind that this is a void pointer, which must be cast to the appropriate data type within your callback function. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
Thte L_VecSetFontMapper function calls your callback function for every font being added to the vector handle.
Required DLLs and Libraries
LVKRN For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
See Also
Functions: |
Example
L_INT WINAPI myFontMapper1( pVECTORHANDLE pVector, LPLOGFONTW pLogFont, L_VOID* pUserData ) { UNREFERENCED_PARAMETER( pVector ); UNREFERENCED_PARAMETER( pLogFont ); UNREFERENCED_PARAMETER( pUserData ); /* pUserData points to "Arial" .. copy it to pLogFont->lfFaceName to force the toolkit to render all fonts as Arial */ lstrcpy( pLogFont->lfFaceName, (L_TCHAR *)pUserData ); return SUCCESS; } L_INT VectorFontMappercallBackExample(pVECTORHANDLE pVector ) { L_INT nRet; nRet = L_VecSetFontMapper( pVector, myFontMapper1, TEXT("Arial")); return nRet; }