set_window_dcT_set_window_dcSetWindowDcSetWindowDcset_window_dc (算子)

名称

set_window_dcT_set_window_dcSetWindowDcSetWindowDcset_window_dc — 设置虚拟图形窗口（Windows NT）的设备上下文。

签名

描述

set_window_dcset_window_dcSetWindowDcSetWindowDcSetWindowDcset_window_dc sets the device context of a window previously opened with new_extern_windownew_extern_windowNewExternWindowNewExternWindowNewExternWindownew_extern_window。All output (disp_regiondisp_regionDispRegionDispRegionDispRegiondisp_region, disp_imagedisp_imageDispImageDispImageDispImagedisp_image, etc.) is done in the window with this device context.

The parameter WINHDCWINHDCWINHDCWINHDCWINHDCwinhdc 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.

注意

The window WindowHandleWindowHandleWindowHandleWindowHandlewindowHandlewindow_handle has to be created with new_extern_windownew_extern_windowNewExternWindowNewExternWindowNewExternWindownew_extern_window beforehand.

执行信息

• 多线程类型：可重入（与非独占算子并行运行）。
• 多线程作用域：全局（可从任何线程调用）。
• 未采用并行化处理。

参数

结果

If the values of the specified parameters are correct, set_window_dcset_window_dcSetWindowDcSetWindowDcSetWindowDcset_window_dc 返回 2 ( H_MSG_TRUE )。如有必要，则抛出异常。

可能的前趋

new_extern_windownew_extern_windowNewExternWindowNewExternWindowNewExternWindownew_extern_window

可能的后继

disp_imagedisp_imageDispImageDispImageDispImagedisp_image, disp_regiondisp_regionDispRegionDispRegionDispRegiondisp_region

另见

new_extern_windownew_extern_windowNewExternWindowNewExternWindowNewExternWindownew_extern_window, disp_regiondisp_regionDispRegionDispRegionDispRegiondisp_region, disp_imagedisp_imageDispImageDispImageDispImagedisp_image, disp_colordisp_colorDispColorDispColorDispColordisp_color, set_lutset_lutSetLutSetLutSetLutset_lut, query_colorquery_colorQueryColorQueryColorQueryColorquery_color, set_colorset_colorSetColorSetColorSetColorset_color, set_rgbset_rgbSetRgbSetRgbSetRgbset_rgb, set_hsiset_hsiSetHsiSetHsiSetHsiset_hsi, set_pixelset_pixelSetPixelSetPixelSetPixelset_pixel, set_grayset_graySetGraySetGraySetGrayset_gray, set_partset_partSetPartSetPartSetPartset_part, set_part_styleset_part_styleSetPartStyleSetPartStyleSetPartStyleset_part_style, query_window_typequery_window_typeQueryWindowTypeQueryWindowTypeQueryWindowTypequery_window_type, get_window_typeget_window_typeGetWindowTypeGetWindowTypeGetWindowTypeget_window_type, set_window_typeset_window_typeSetWindowTypeSetWindowTypeSetWindowTypeset_window_type, get_mpositionget_mpositionGetMpositionGetMpositionGetMpositionget_mposition, set_tpositionset_tpositionSetTpositionSetTpositionSetTpositionset_tposition, set_window_extentsset_window_extentsSetWindowExtentsSetWindowExtentsSetWindowExtentsset_window_extents, get_window_extentsget_window_extentsGetWindowExtentsGetWindowExtentsGetWindowExtentsget_window_extents, set_window_attrset_window_attrSetWindowAttrSetWindowAttrSetWindowAttrset_window_attr, set_checkset_checkSetCheckSetCheckSetCheckset_check, set_systemset_systemSetSystemSetSystemSetSystemset_system

模块

基础