delphi - What can I do about maximized, styled windows, which show their borders on adjacent monitors? -

-

on multi-monitor system, "blank" vcl application maximizes fine, same application styles enabled (and 1 chosen default) maximizes incorrectly. i'm seeing right-hand edge of window extend onto 2nd monitor (my main on left). when started comparing other windows apps, noticed under windows 7 (at least), maximized windows not have non-client borders on left, right or bottom sides. , indeed, standard vcl (non-styled) app behaves same way, without non-client borders.

how fix this? notice tformstylehook has handler wmnccalcsize, haven't dissected yet, makes me wonder if vcl might incorrectly handling message maximized window.

after fiddling time on this, take is, not vcl-styles bug @ all. indeed related behavior in article mentioned in comment question mghie.

the specific behavior that, size of maximized window larger work area of monitor window maximized on. supposedly, window manager hides overhang borders. apparently, doesn't quite customized frames. note msdn's own custom window frame example seems suffer same problem (refer post titled "bug when window maximized " in community content). vcl's application different msdn example in it's not based on dwm, still think same issue.

the overhang borders have size of system sizing border (sm_c[x|y]sizeframe), irrelevant workaround below disregards os suggested size/position , uses work area.

unfortunately don't think workaround usable @ all. one, mentioned behavior not documented, two, workaround not perfect; there's still odd pixel out. if snap window on work area, window manager decides offset window thinks window (with hidden frames) should placed. (the vcl modified window manager does, , take account overhang , not draw them or similar, more work , still workaround undocumented behavior..)

anyway;

type   tform1 = class(tform)     ..   protected     // overriding styles not necessary since tformstylehook.wmgetminmaxinfo     // first calls default window procedure      procedure wmgetminmaxinfo(var message: twmgetminmaxinfo);       message wm_getminmaxinfo;  ..  procedure tform1.wmgetminmaxinfo(var message: twmgetminmaxinfo); var   r: trect; begin   // arrives minmaxinfo.ptmaxposition = (-sm_cxframe, -sm_cyframe)   // , minmaxinfo.ptmaxsize = (primarymonitor.width (?) + 2 * sm_cxframe, ... )   inherited;    // should test os, styles etc. before running below    r := monitor.workarearect;   inflaterect(r, -1, -1);             // odd pixel   offsetrect(r, -monitor.left, -monitor.top);   message.minmaxinfo.ptmaxposition := r.topleft;   message.minmaxinfo.ptmaxsize := point(r.width, r.height); end;

Comments

Post a Comment

Popular posts from this blog

django - How can I change user group without delete record -

-
on website user have 1 group. , user can change group. it's made user.groups.clear() and user.groups.add(new_group) but it's not efficient, because there 2 sql query: delete, insert. how can change group update query? user , group related each other using manytomanyfield . means intersection table exists relating both entities, , if don't specify model map (using through attribute) django creates 1 you. looking @ sources django.contrib.auth.models see that's case. fortunatly, can access intermediary model using through attribute of manager (in case, user.groups.through ). can use regular model. example: >>> alice = user.objects.create_user('alice', 'alice@example.com', 'alicepw') >>> employee = group.objects.create(name='employee') >>> manager = group.objects.create(name='manager') >>> alice.groups.add(employee) >>> alice.groups.all() [<group: employee...
Read more

java - Need to add SOAP security token -

-
i need set custom soap header attribute on jax-ws generated webservice client. case webservice calls must go through proxy server requiring specific token (recieved web request header) present in soap request header. e.g.: 1 carserviceservice service = null; 2 service = new carserviceservice(new url(url), new qname(qname); 3 carserviceendpoint port = service.getcarserviceport(); it seems in line 3 wsdl retrieved , call fails due missing security token. 1 point direction on how done? a detailed example has been mentioned here: creating , deploying jax-ws web service on tomcat 6 this article shows how create , use security token .
Read more

java - EclipseLink JPA Object is not a known entity type -

-
i have strange problem eclipselink , object want persist. have 1 object (keypointlistimpl) stores object keypointimpl in list. persisting keypointimpl objects works great if try persist keypointlistimpl object java.lang.illegalargumentexception says object keypointimpl isn't known entity type. here keypointimpl code: @entity @table(name="keypoints") public class keypointimpl implements keypoint { @id @generatedvalue(strategy = generationtype.identity) private int id; @enumerated(enumtype.string) private detectortype keypointtype; private float x; private float y; private float size; private float angle; private float response; private int octave; private int classid; ... } here keypointlistimpl code: @entity @table(name="keypointlists") public class keypointlistimpl implements keypointlist { @id @generatedvalue(strategy = generationtype.identity) private int id; @onetoone(cascade={ca...
Read more