How to set some functions when mouse is moving over form objects
How to set some functions when mouse is moving over form objects
This program demonstrates how to change form properties according to mouse movements. On this tutorial it changes the color of the rectangle and cursor shape as user move mouse over each rectangle on the form. Main goal of this tutorial is to demonstrate how to set some function when mouse is moving over form objects.
Following procedure set shape color into black and change the default shape cursor. You have to repeat this procedure for each shape. Here is only for one shape. It is similar for all the shape.
procedure TForm1.Shape1MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
begin
If (CheckBox1.Checked) And (Shape1.Brush.Color<>clBlack) Then
Shape1.Brush.Color:=clBlack;
If (CheckBox2.Checked) And (Shape1.Cursor<>crDrag) Then
Shape1.Cursor:=crDrag;
end;
Use this procedure to set shape color and cursor shape to default.
procedure TForm1.FormMouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
Var
X1, X2, Y1, Y2 : Integer;
begin
If Shape1.Brush.Color=clBlack Then
Shape1.Brush.Color:=clWhite;
If Shape2.Brush.Color=clBlack Then
Shape2.Brush.Color:=clWhite;
If Shape3.Brush.Color=clBlack Then
Shape3.Brush.Color:=clWhite;
If Shape4.Brush.Color=clBlack Then
Shape4.Brush.Color:=clWhite;
If Shape5.Brush.Color=clBlack Then
Shape5.Brush.Color:=clWhite;
If Shape6.Brush.Color=clBlack Then
Shape6.Brush.Color:=clWhite;
If Shape7.Brush.Color=clBlack Then
Shape7.Brush.Color:=clWhite;
If Shape1.Cursor<>crDefault Then
Shape1.Cursor:=crDefault;
If Shape2.Cursor<>crDefault Then
Shape2.Cursor:=crDefault;
If Shape3.Cursor<>crDefault Then
Shape3.Cursor:=crDefault;
If Shape4.Cursor<>crDefault Then
Shape4.Cursor:=crDefault;
If Shape5.Cursor<>crDefault Then
Shape5.Cursor:=crDefault;
If Shape6.Cursor<>crDefault Then
Shape6.Cursor:=crDefault;
If Shape7.Cursor<>crDefault Then
Shape7.Cursor:=crDefault;
Label1.Caption:='X : '+IntToStr(X)+' Y : '+IntToStr(Y);
end;
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On-mousemove-over-objects.zip
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