dev_set_window_extents — Change position and size of the active graphics window.
dev_set_window_extents changes the position and/or the size
of the currently active graphics window.
The parameters Row and Column specify the new
position (upper left corner) of the window.
Depending on the window mode of HDevelop, the coordinates (0,0) refer to the
upper left corner of the window area in the main HDevelop window in MDI
mode, and the upper left corner of the screen in SDI mode, respectively.
Negative coordinates of the position are ignored, i.e., in this
direction the window will not be moved.
The parameters Width and Height specify the new size of
the window.
This is the size of the inner part that actually displays the iconic
objects.
If one of the two values is negative, this dimension will remain unchanged.
Never use set_window_extents to change the size and position
of an HDevelop graphics window. The operator
dev_set_window_extents has to be used instead.
Using the code export feature of HDevelop, the code that is generated
for this operator may have a different behavior than the related
HALCON operator.
For a detailed description of the code export of HDevelop graphics
operators into the different programming languages see in the
“HDevelop User's Guide” the chapter Code Export
-> General Aspects of Code Generation
-> Graphics Windows.
Row (input_control) rectangle.origin.y → (integer)
Row index of upper left corner.
Default value: 0
Typical range of values: 0
≤
Row
Minimum increment: 1
Recommended increment: 1
Restriction: Row >= 0 || Row == -1
Column (input_control) rectangle.origin.x → (integer)
Column index of upper left corner.
Default value: 0
Typical range of values: 0
≤
Column
Minimum increment: 1
Recommended increment: 1
Restriction: Column >= 0 || Column == -1
Width (input_control) rectangle.extent.x → (integer)
Width of the window.
Default value: 256
Typical range of values: 0
≤
Width
Minimum increment: 1
Recommended increment: 1
Restriction: Width > 0 || Width == -1
Height (input_control) rectangle.extent.y → (integer)
Height of the window.
Default value: 256
Typical range of values: 0
≤
Height
Minimum increment: 1
Recommended increment: 1
Restriction: Height > 0 || Height == -1
dev_close_window () read_image (For5, 'for5') get_image_size (For5, Width, Height) dev_open_window (0, 0, Width, Height, 'black', WindowHandle) dev_display (For5) stop () dev_set_window_extents (-1,-1,Width/2,Height/2) dev_display (For5) stop () dev_set_window_extents (200,200,-1,-1)
If the values of the specified parameters are correct,
dev_set_window_extents returns 2 (H_MSG_TRUE). Otherwise, an
exception is raised and an error code returned.
dev_display,
dev_set_lut,
dev_set_color,
dev_set_draw,
dev_set_part
Foundation