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HDevelop User's Manual

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19<br />

You may change the size of the graphics window interactively by “gripping” the window border<br />

with the mouse. Then you can resize the window by dragging the mouse pointer. After this size<br />

modification the window content is redisplayed. Now you see the same part of the window with<br />

changed zoom.<br />

If the mouse cursor is inside the window its look-up-table is reactivated. This is necessary<br />

if other programs use their own look-up table. Thus if there is a “strange” graphics window<br />

presentation, you may load the proper look-up table by placing the mouse inside the window.<br />

Opening a window causes the assignment of a default font. It is used in connection with procedures<br />

like ÛÖØ ×ØÖÒ and you may overwrite it by performing ×Ø ÓÒØ after calling<br />

Ú ÓÔÒ ÛÒÓÛ. On the other hand you have the possibility to specify a default font by calling<br />

×Ø ×Ý×ØÑ´³ÙÐØ ÓÒس¸ÓÒØÒѵ before opening a window (and all following<br />

windows; see also ÕÙÖÝ ÓÒØ).<br />

If you want to specify display parameters for a window you may select the menu item<br />

Î×ÙÐÞØÓÒ in the menu bar. Here you can set the appropriate parameters by clicking<br />

the desired item. Parameters which you have set in this way are used for all windows (in contrast<br />

to standard windows opened with ÓÔÒ ÛÒÓÛ). The effects of the new parameters will<br />

be applied direcly to the last object of the window history and alter its parameters only.<br />

Attention<br />

Never use ÐÓ× ÛÒÓÛ to close an <strong>HDevelop</strong> graphics window. The operator<br />

Ú ÐÓ× ÛÒÓÛ has to be used instead.<br />

If Ú ÓÔÒ ÛÒÓÛ should be used for exported Code (C++), please note the description of<br />

ÓÔÒ ÛÒÓÛ due to the different semantics in C++.<br />

Parameter<br />

º ÊÓÛ (input control) .......................................rectangle.origin.y integer<br />

Row index of upper left corner.<br />

Default Value : 0<br />

Typical Range of Values : 0 ÊÓÛ<br />

Minimal Value Step : 1<br />

Recommended Value Step : 1<br />

Restriction : ÊÓÛ ¼<br />

º ÓÐÙÑÒ (input control) ...................................rectangle.origin.x integer<br />

Column index of upper left corner.<br />

Default Value : 0<br />

Typical Range of Values : 0 ÓÐÙÑÒ<br />

Minimal Value Step : 1<br />

Recommended Value Step : 1<br />

Restriction : ÓÐÙÑÒ ¼<br />

º ÏØ (input control) ....................................rectangle.extent.x integer<br />

Width of the window.<br />

Default Value : 256<br />

Typical Range of Values : 0 ÏØ<br />

Minimal Value Step : 1<br />

Recommended Value Step : 1<br />

Restriction : ´ÏØ ¼µ ´ÏØ ¹½µ<br />

HALCON 6.0

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