Operator Reference

HALCON Operator Reference / Graphics / Window
ClassesClasses | | Operators

set_window_dcT_set_window_dcSetWindowDcSetWindowDcset_window_dc (Operator)

set_window_dcT_set_window_dcSetWindowDcSetWindowDcset_window_dc — Set the device context of a virtual graphics window (Windows NT).

Signature

set_window_dc( : : WindowHandle, WINHDC : )

Herror T_set_window_dc(const Htuple WindowHandle, const Htuple WINHDC)

void SetWindowDc(const HTuple& WindowHandle, const HTuple& WINHDC)

void HWindow::SetWindowDc(void* WINHDC) const

static void HOperatorSet.SetWindowDc(HTuple windowHandle, HTuple WINHDC)

void HWindow.SetWindowDc(IntPtr WINHDC)

def set_window_dc(window_handle: HHandle, winhdc: int) -> None

Description

set_window_dcset_window_dcSetWindowDcSetWindowDcset_window_dc sets the device context of a window previously opened with new_extern_windownew_extern_windowNewExternWindowNewExternWindownew_extern_window. All output (disp_regiondisp_regionDispRegionDispRegiondisp_region, disp_imagedisp_imageDispImageDispImagedisp_image, etc.) is done in the window with this device context.

The parameter WINHDCWINHDCWINHDCWINHDCwinhdc contains the device context of the window in which HALCON should output its data. This device context is used in all output routines of HALCON.

Attention

The window WindowHandleWindowHandleWindowHandlewindowHandlewindow_handle has to be created with new_extern_windownew_extern_windowNewExternWindowNewExternWindownew_extern_window beforehand.

Execution Information

  • Multithreading type: reentrant (runs in parallel with non-exclusive operators).
  • Multithreading scope: global (may be called from any thread).
  • Processed without parallelization.

Parameters

WindowHandleWindowHandleWindowHandlewindowHandlewindow_handle (input_control)  window → HWindow, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)

Window handle.

WINHDCWINHDCWINHDCWINHDCwinhdc (input_control)  pointer → HTupleintHTupleHtuple (integer) (IntPtr) (Hlong) (Hlong)

device context of WINHWnd.

Restriction: WINHDC != 0

Result

If the values of the specified parameters are correct, set_window_dcset_window_dcSetWindowDcSetWindowDcset_window_dc returns 2 ( H_MSG_TRUE) . If necessary, an exception is raised.

Possible Predecessors

new_extern_windownew_extern_windowNewExternWindowNewExternWindownew_extern_window

Possible Successors

disp_imagedisp_imageDispImageDispImagedisp_image, disp_regiondisp_regionDispRegionDispRegiondisp_region

See also

new_extern_windownew_extern_windowNewExternWindowNewExternWindownew_extern_window, disp_regiondisp_regionDispRegionDispRegiondisp_region, disp_imagedisp_imageDispImageDispImagedisp_image, disp_colordisp_colorDispColorDispColordisp_color, set_lutset_lutSetLutSetLutset_lut, query_colorquery_colorQueryColorQueryColorquery_color, set_colorset_colorSetColorSetColorset_color, set_rgbset_rgbSetRgbSetRgbset_rgb, set_hsiset_hsiSetHsiSetHsiset_hsi, set_pixelset_pixelSetPixelSetPixelset_pixel, set_grayset_graySetGraySetGrayset_gray, set_partset_partSetPartSetPartset_part, set_part_styleset_part_styleSetPartStyleSetPartStyleset_part_style, query_window_typequery_window_typeQueryWindowTypeQueryWindowTypequery_window_type, get_window_typeget_window_typeGetWindowTypeGetWindowTypeget_window_type, set_window_typeset_window_typeSetWindowTypeSetWindowTypeset_window_type, get_mpositionget_mpositionGetMpositionGetMpositionget_mposition, set_tpositionset_tpositionSetTpositionSetTpositionset_tposition, set_window_extentsset_window_extentsSetWindowExtentsSetWindowExtentsset_window_extents, get_window_extentsget_window_extentsGetWindowExtentsGetWindowExtentsget_window_extents, set_window_attrset_window_attrSetWindowAttrSetWindowAttrset_window_attr, set_checkset_checkSetCheckSetCheckset_check, set_systemset_systemSetSystemSetSystemset_system

Module

Foundation

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