References ▼
#include "LtPnt.h"
L_LTPNT_API L_INT L_PntInit(ppPaint)
Initializes the paint handle.
Pointer to a pointer to a paint handle to be initialized.
| Value | Meaning |
|---|---|
| SUCCESS | The function was successful. |
| < 1 | An error occurred. Refer to Return Codes. |
This function must be called before calling any other paint functions.
A paint handle is valid after calling L_PntInit, and will remain valid until L_PntFree is called.
For every call to L_PntInit there must be a call to L_PntFree.
Required DLLs and Libraries
This example shows the minimum requirements for painting a rectangle shape.
L_INT PntInitExample(HWND hWnd){L_INT nRet;pPAINTHANDLE pPaint ;HDC hDC ;RECT rcShapeRect ;/* Initiate the Paint toolkit */nRet = L_PntInit ( &pPaint );if ( SUCCESS != nRet){return nRet ;}/*Get the device context*/hDC = GetDC ( hWnd ) ;/* Set the rectangle coordinates with respect to the DC dimensions*/SetRect ( &rcShapeRect, 10, 10, 100, 100 ) ;/* Set the DC Extents */RECT rcClient;GetClientRect(hWnd, &rcClient);nRet = L_PntSetDCExtents ( pPaint, &rcClient );/* Use the default properties for the shape to draw a rectangle*/nRet = L_PntDrawShapeRectangle ( pPaint, hDC, &rcShapeRect ) ;if(nRet != SUCCESS)return nRet;/* Release the device context*/ReleaseDC ( hWnd, hDC ) ;// Free the paint tools handle.L_PntFree ( pPaint ) ;return SUCCESS ;}