GOLRedrawRec Function

Microchip Graphics Library

void GOLRedrawRec(
    SHORT left, 
    SHORT top, 
    SHORT right, 
    SHORT bottom
);

Overview

This function marks all objects in the active list intersected by the given rectangular area to be redrawn.

Input Parameters

Input Parameters	Description
SHORT left	Defines the left most border of the rectangle area.
SHORT top	Defines the top most border of the rectangle area.
SHORT right	Defines the right most border of the rectangle area.
SHORT bottom	Defines the bottom most border of the rectangle area.

Returns

none

Preconditions

none

Side Effects

none

Example

Copy Code

OBJ_HEADER *pTemp;
OBJ_HEADER *pAllObjects;

// assume *pAllObjects points to a list of all existing objects
// created and initialized

// mark all objects inside the rectangle to be redrawn
GOLRedrawRec(10,10,100,100);

pTemp = pAllObjects;                    
GOLStartNewList();                      // reset active list
while(pTemp->pNxtObj != NULL) {
    if (pTemp->state&0x7C00)            // add only objects to be
    GOLAddObject(pTemp);                // redrawn to the active list
    pTemp = pTemp->pNxtObj;
}
GOLDraw();                              // redraw active list

Library API > Graphics Object Layer API > Object Management > GOLRedrawRec Function

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