PetscDrawGetMouseButton

Returns location of mouse and which button was pressed. Waits for button to be pressed.

Synopsis

#include "petscdraw.h" 
PetscErrorCode PetscDrawGetMouseButton(PetscDraw draw, PetscDrawButton *button, PetscReal *x_user, PetscReal *y_user, PetscReal *x_phys, PetscReal *y_phys)

Collective

Input Parameter

• draw - the window to be used

Output Parameters

• button - one of PETSC_BUTTON_LEFT, PETSC_BUTTON_CENTER, PETSC_BUTTON_RIGHT, PETSC_BUTTON_WHEEL_UP, PETSC_BUTTON_WHEEL_DOWN

• x_user - horizontal user coordinate of location (user may pass in NULL).

• y_user - vertical user coordinate of location (user may pass in NULL).

• x_phys - horizontal window coordinate (user may pass in NULL).

• y_phys - vertical window coordinate (user may pass in NULL).

Note

Only processor 0 actually waits for the button to be pressed.

See Also

PetscDraw, PetscDrawButton

Level

intermediate

Location

src/sys/classes/draw/interface/dmouse.c

Implementations

PetscDrawGetMouseButton_Image() in src/sys/classes/draw/impls/image/drawimage.c
PetscDrawGetMouseButton_Win32() in src/sys/classes/draw/impls/win32/win32draw.c
PetscDrawGetMouseButton_X() in src/sys/classes/draw/impls/x/xops.c

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Index of all Draw routines
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