C
#define GOLRedraw(pObj) ((OBJ_HEADER *)pObj)->state |= 0x7c00;
Overview
This macro sets the object to be redrawn. For the redraw to be effective, the object must be in the current active list. If not, the redraw action will not be performed until the list where the object is currently inserted will be set to be the active list.
Input Parameters
|
Input Parameters |
Description |
|
pObj |
Pointer to the object to be redrawn. |
Returns
none
Preconditions
none
Side Effects
none
Example
void GOLRedrawRec(SHORT left, SHORT top, SHORT right, SHORT bottom) { // set all objects encompassed by the rectangle to be redrawn OBJ_HEADER *pCurrentObj; pCurrentObj = GOLGetList(); while(pCurrentObj != NULL){ if ( ((pCurrentObj->left >= left) && (pCurrentObj->left <= right)) || ((pCurrentObj->right >= left) && (pCurrentObj->right <= right))|| ((pCurrentObj->top >= top) && (pCurrentObj->top <= bottom)) || ((pCurrentObj->bottom >= top) && (pCurrentObj->bottom <= bottom))){ GOLRedraw(pCurrentObj); } pCurrentObj = pCurrentObj->pNxtObj; }//end of while }