Hi Carlo. I use something like the following:
*/* FUNCTION: MainGLView :: MouseDown*
* ARGUMENTS: p*
* RETURN: n/a*
* DESCRIPTION: Convert Mouse message to Yarra format *
**/*
static Y_MOUSE_BUTTON mouse_button;
*void* MainGLView :: MouseDown(BPoint p)
{
*// Determine mouse button*
BMessage* msg = Window()->CurrentMessage();
uint32 buttons;
msg->FindInt32("buttons", (int32*)&buttons);
*if* (buttons & B_PRIMARY_MOUSE_BUTTON)
mouse_button = Y_MOUSE_BUTTON_PRIMARY;
*else* *if* (buttons & B_SECONDARY_MOUSE_BUTTON)
mouse_button = Y_MOUSE_BUTTON_SECONDARY;
*else* *if* (buttons & B_TERTIARY_MOUSE_BUTTON)
mouse_button = Y_MOUSE_BUTTON_TERTIARY;
LockGL();
fApplication->MouseDown(mouse_button, *true*, p.x, p.y);
UnlockGL();
}
*/* FUNCTION: MainGLView :: MouseUp*
* ARGUMENTS: p*
* RETURN: n/a*
* DESCRIPTION: Convert Mouse message to Yarra format *
**/*
*void* MainGLView :: MouseUp(BPoint p)
{
LockGL();
fApplication->MouseDown(mouse_button, *false*, p.x, p.y);
UnlockGL();
}
On Wed, 9 Jan 2019 at 02:28, Carlo Lanzotti - DynaDream <
clanzotti@xxxxxxxxxxxxx> wrote:
Il 08/01/2019 15:56, Stephan Aßmus ha scritto:
Hi,Hi Stefan,
Am 08.01.2019 um 15:26 schrieb Carlo Lanzotti - DynaDream:
thanks for your reply. It just confused me because I was thinking it
was something to report which mouse buttons were involved when
calling the hooks.
Is there a way to get which buttons was released in the MouseUp() hook?
This is off the top of my head: Use
Window()->CurrentMessage()->PrintToStream() from within your MouseUp()
implementation. If there is no helpful "old buttons" kind of data in
that message, you indeed have to track the buttons yourself. By
comparing your stored uint32 buttons value against the new buttons
value from the Message, you can know what button was release.
Please note that you should not use GetMouse(). GetMouse() will give
you the current state of the mouse, it will query the app_server for
that. Mouse messages may be processed with a delay in your
application, and GetMouse() could mess up the event order. As an
example, the button that was released and triggered your MouseUp()
hook to be called, may already be pressed again by the time you
process the event, and GetMouse() will show that. The value in the
message will however reflect the buttons at the time the event was
generated for you.
Best regards,
-Stephan
yes, I figured it out about GetMouse(). Actually what I'm doing is
comparing buttons flags like you suggested. I was curious about the fact
that there is not a flag indicating which buttons got involved in the
process.
Thanks for your help.
Best Regards,
--
Carlo Lanzotti
DynaDream - Dynamic Laboratory
http://www.dynadream.com