MouseOn(); // Call 0x33, ax =3D 1; Since this will not show the = mouse cursor we will draw it by hand.... while (!kbhit()) { GetCurrentMouseCoordinates(&x, &y); DrawMouseCursor(x, y); DoSomeThingElseUseful(); // the rest of your program :) } ..... The problem with the last solution is that you have to do everything = within the loop or your mouse cursor will not be drawn. I know it's a = kind of weird solution but it works. Q'plaH (good luck) ------=_NextPart_000_0013_01C02EE3.3917F860 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

> Hi,=20

i am sorry for having posted this message = here, (since=20 this is a djgpp mailing list & not BGI ) but i got a problem which = only

you guys can solve out. =

I am making a BMP editor for our school project in TC++30.

I managed to get 640x480x256color working using interrupts. =

Well when i used 16 color mode MOUSE was = visible, Now=20 when i switched to 256 color mode MOUSE is not visible even after=20 calling int 33h for showing mouse ptr. Anybody has a = slight=20 idea whats happenning 'cos i am new to grafix stuff. How do i correct = this=20 error.

Thanx in advance.

Siddhartha.

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The problem is that the mouse driver does not support mouse = cursors (like=20 the standard white arrow and the ascii character in textmode) in VESA = modes=20 (like the 640x480x256). You'll have to play with int 33h a bit to make = this=20 work. For example you could hook interrupt 31 and then, when interrupt = 33 is=20 called with ax =3D 0x1 (show mouse) let your program show a graphic = mouse cursor=20 (you can use putpixel to draw your own cursor and you could use 256 = colors in=20 your cursor. But also notice that the BGI putpixel is not very fast so = don't=20 make your mouse cursor too big). If you aren't familiar with = interrupts you=20 could also do this in an easier way. Create a program like this=20 example:

int mouse_cursor_image_array[100] =3D =

{0,0,0,0,0 .... create your own mouse cursor = picture here=20 ..... };

void DrawMouseCursor(int x, int y)

{

for (int i =3D 0; i < 10; = i++)

for (int m =3D 0; i <=20 10; m++)

=20 putpixel(i,m,mouse_cursor_image_array[i*10+m]);

}

MouseOn(); // Call 0x33, ax =3D = 1; Since=20 this will not show the mouse cursor we will draw it by = hand....

while (!kbhit())

{

GetCurrentMouseCoordinates(&x,=20 &y);

DrawMouseCursor(x, = y);

DoSomeThingElseUseful(); = // the=20 rest of your program :)

}

.....

The problem with the last solution is that you have to do = everything=20 within the loop or your mouse cursor will not be drawn. I know it's a = kind of=20 weird solution but it works.

Q'plaH (good luck)

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