Question: Supposewe have a drawing application in which there is an overlappedwi

Question

Question:
Supposewe have a drawing application in which there is an overlappedwindow and a button with text “Clear” on it. Wheneverthis button is clicked all the drawings on the window should beerased. Write down the mechanism of clearing the drawings from ourwindow Question:
Supposewe have a drawing application in which there is an overlappedwindow and a button with text “Clear” on it. Wheneverthis button is clicked all the drawings on the window should beerased. Write down the mechanism of clearing the drawings from ourwindow

Explanation / Answer

Dear, when we are clear the content of the window in visualprogramming.Then we Use Invalidate() function to erase the entire contents of window. and it alsocall WM_PAINT message to redrawthe client area

// Invalidate function

void Invalidate( BOOL bErase = TRUE ); I hope this is helpful foryou...... I hope this is helpful foryou...... I hope this is helpful foryou......

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.